Nonimaging Optical Differentiation Of Forest Foliage
Abstract:The bidirectional first and second Stokes parameters were determined in the laboratory on a large-scale polarimeter/photometer for fresh and dried needles and the bark of red pine (Pinus resinosa) and for leaves of black oak (Quercus velutina), sugar maple (Acer saccharum), and peach leaves (Prunus persica var. Elberta). Wavelengths of 0.350, 0.433, 0.533, 0.566, 0.633, 0.8, and 1.0, determined by interference filters, were used. The data show a wide diversity of bidirectional polarimetric and photometric properties that uniquely characterize the foliage in a low resolution nonimaging sensing system. Bidirectional Stokes parameters, implying total use of all the information in the radiation scattered by forest foliage, offer a possibility of extending the resolution limit of a system, based on a particular set of hardware components, to identify forest cover. Forest Sci. 16:79-94.
Document Type: Journal Article
Affiliations: Staff Scientist, Research Department, Grumman Aerospace Corporation, Bethpage, New York 11714
Publication date: March 1, 1970
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